Blue Thunder Name Change and Muus Project Update

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Montreal, Quebec--(Newsfile Corp. - July 3, 2024) - Blue Thunder Mining Inc. (TSXV: BLUE) (the "Company"), announces that its previously announced name change to Mines D'Or Orbec Inc. will be effective on Friday, July 5, 2024. The Company's trading symbol is not being changed and will continue to be BLUE.

Muus Project Update

The Company is pleased to announce that it is commencing its 2024 exploration campaign at its Muus Gold Project in Chibougamau, Québec. The campaign was designed in collaboration with IAMGOLD Corporation ("IAMGOLD") and approved by the IAMGOLD-Orbec Technical Committee.

The Muus Project comprises about 25,250 hectares in the richly endowed Chibougamau-Chapais district, which has historically produced over 3 billion pounds of copper and 4 million ounces of gold. Muus is located at the intersection of two mineralised structures, which respectively host IAMGOLD's multi-million-ounce Nelligan Gold Project and the high-grade (over 12 g/t Au) Monster Lake Gold Project. Previous work on the Muus Project has identified several mineralised occurrences and documented the potential for both Nelligan and Monster Lake style gold mineralisation as well as for volcanogenic massive sulphide (VMS) copper-gold mineralisation.

The Company's CEO, Dorian L. (Dusty) Nicol, commented, "We are very excited to be restarting exploration work at our Muus Gold Project. The proposed work program has benefited enormously from the participation of the IAMGOLD team with their in-depth understanding of the district's geology and mineralisation. This collaboration, together with our enhanced understanding of the styles of mineralisation and targets at Muus, will enable us to implement a highly focused and cost-effective exploration program. The objective will be to define high-quality drill targets for testing this autumn and winter."

Exploration Program

The upcoming program will comprise of:

  • Geologic mapping and geochemical sampling

  • Geophysics (Induced Polarization)

  • Glacial till sampling

The objective of the program is to define targets for drilling during this winter.

Geologic Mapping and Geochemical Sampling

Geologic mapping and geochemical sampling will be undertaken in specific areas with the objective of better defining the style(s) of mineralisation and identifying targets for future drilling. This work will be undertaken in five areas (see Figure 1):

  • Area A - Lac Bernard Sud showing. The objective of this fieldwork is to document the structural setting of the orogenic style on mineralisation of the Lac Bernard area. This area hosts a significant gold in glacial till anomaly (up to 36 grains of gold per sample) and is believed favorable for Nelligan-style gold mineralisation. Drilling in this area in 2022 was not able to reach the target depth but displayed hydrothermal alteration consistent with an orogenic gold mineralising system.

  • Area B - Chesbar and Lac Rane areas. The objective of this fieldwork is to prospect in the areas around VMS showings (including massive chalcopyrite) in the northern part of the claims. The program will also test for continuity of the mineralisation between the three known showings.

  • Area C - Inflexion along the Guercheville Deformation Zone (GDZ). The objective of this fieldwork is to evaluate the prospectivity along a part of the GDZ, where it curves from an E-W strike to an WNW-ESE strike. Structural complexities are prospective for orogenic gold systems.